Hello Everyone
What you are all describing sounds like a hardware failure and I think it would be best if you contacted HP technical support for repair options.
US support link to contact options for laptops purchased in the US.
http://h10025.www1.hp.com/ewfrf/wc/contacthp?cc=us&lc=en
Outside of US support link to contact options for laptops purchased outside the US.
http://www8.hp.com/us/en/contact-hp/ww-contact-us.html
I am really sorry but I cannot fix hardware over the Forums. I would like to thank you for posting on the HP Forums. Have a great day!